# SDR UIEA2025082601142

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2025
- Submitted: August 28, 2025
- Operation: Air carrier
- Aircraft: [N498MC](https://openairdocs.org/aircraft/N498MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29259
- Aircraft time: 105,245 hours, 16,933 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 4205401
- Part serial: 275227B
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025082601142

## Discrepancy

HYD OVHT SYS 4 EICAS MESSAGE. R & R TEMP TRANSMITTER IAW AMM 29-32-02. OPS/LK CHK OK. R & R EDP IAW AMM 29-11-05. OPS CHECKED OK PER AMM 29-11-05. IDLE RUN CHKS OK PER AMM 71-00-00-705-152-J00. REF IPC 29-11-05-048.

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